Crambus: New Campaign Targets Middle Eastern Government

The Iranian Crambus espionage group (aka OilRig, APT34) staged an eight-month-long intrusion against a government in the Middle East between February and September 2023. During the compromise, the attackers stole files and passwords and, in one case, installed a PowerShell backdoor (dubbed PowerExchange) that was used to monitor incoming mails sent from an Exchange Server in order to execute commands sent by the attackers in the form of emails, and surreptitiously forwarded results  to the attackers. Malicious activity occurred on at least 12 computers and there is evidence that the attackers deployed backdoors and keyloggers on dozens more.

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Source: Symantec